# Posts by Maya

Total # Posts: 595

**physics**

A project is fire at angale of 45 with x-axis with the K.E 100J what is its K.E energy at maximum height?

**Pre-Agbra**

never mind

**chemistry**

Write "oxidation" before the reaction below which is anoxidation reaction; write "reduction" before the reaction belowwhich is a reduction reaction. a.____________________ Na----> Na+ (small+) + e- b.____________________ Cl + e- ----> Cl- What does it...

**Physics _ Please help**

25 kg of ice at 0° C is combined with 4 kg of steam at 100° C. What is the final equilibrium temperature in ° C of the system? (Lf = 3.33 x 105 J/kg; Lv 2.26 x 106 J/kg, specific heat capacity of water =4186 J/(kg.K)) Question 2 options: A) 40 B) 20 C) 60 D) 100 E) 8

**Math**

A spherical balloon is being inflated so that its volume is increasing at the rate of 200 cm3/min. At what rate is the radius increasing when the radius is 15 cm.

**Chemistry**

:D thankyou very much for explaining it all, it seems i was treating the 0.2^1/2 as 0.2*0.5 (being half of one...so wrong!). To get 0.4472 though, 0.2 needs *2.236, it dawned to me as 2.24, bringing so3 to 62.4g after rounding. I promise to practice my algebra. I appreciate ...

**Chemistry**

I thought so2 would be 0.4, I didn't have so3 correct on my ice table. I get x as 0.485; 0.471(x-0.4)=(0.4)(0.2)^1/2 0.471x-0.1884=0.04 0.471x=0.2284 But x needs to be 1.18 for so3 to be 0.78M(1.18 - 0.4) to multiply with 80, am i missing something?

**Chemistry**

equilibrium constant for; so3 <----> so2 + 1/2o2 is found to be 0.471M^1/2 @ 600deg C after a quantity of sulfur trioxide is allowed to come to equilibrium in a 1L flask @ 600deg C, 0.2 mol oxygen was found to be present. What mass of sulfur trioxide was initially placed...

**Chemistry**

what is the proper name for (CH3)2CHCH(OH)CH3?

**Chemistry**

A certain headache relief tablet is composed of monoprotic acetylsalicylic acid(C9H8O4(s)) and an inert filler. A 4.00 g tablet was crushed and dissolved to make 40.0 mL of solution. The solution was then titrated with 0.900 mol/L NaOH(aq). The volume of NaOH(aq) needed to ...

**chemistry**

Help! The concentration of a solution of hydrochloric acid is 1•00 ± 0•05 mol dm−3 and the volume is 10•0 ± 0•1 cm3. Calculate the number of moles and state the absolute uncertainty.

**trig**

Ok, so im brand new at trigonometry. If i have a right triangle with an acute angle of 30° an opposite side of 4 and a hypotenuse of x how do ii find x

**calculus**

The tangent to y = (ax)+b/(sqrt x) at x =1 is 2x-y=1. Find a and b. help?

**advanced algebra**

That is supposed to be 1/x sorry!

**advanced algebra**

How would i go about solving this complex fraction? [(x/3)-4] / [5+(1x)]

**Anatomy**

hhhshhs

**math**

the number blank thirds is between 3 and 4. what could the numerator of this number be? explain your answer.

**economic**

supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expected. Using a method similar to the GDP deflator, compute the percentage change of the overall price level. Also use 2009 as ...

**economic**

supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expectedInflation during the 1970s was much higher than most people had expected when the decade began.How did this affect ...

**economic**

supposes that a borrower and a lender agree on the nominal interest rate to be paid on a loan. Then inflation turns out to be higher than they both expected.

**Speechwriting**

Hiya! Okay how can I introduce a speech without saying Goodmorning ladies and gentlemen? But not seem rude?

**Social Studies**

My pleasure

**Algebra**

I should just stop using this site... No one ever wants to help me anyways...

**Algebra**

I don't even know where to start with this problem... i'm supposed to simplify it but i don't get how, please help! 12e^x / e^4x I would really appreciate the help, thank you!

**Algebra**

ok i need help simplifying this problem. please :) 5e^x/6e it looks similar to this 5e^x ____ 6e Thanks!

**statistics**

At a church bazzar they have a game of chance that consists of picking a two digit number(0-9).You can bet 1$ by picking a two digit number if you match two numbers you win 25$ if you match one the numbers in the same order you win 3$ if you bet 24 and 42 comes up you lose,but...

**Algebra**

OK THANKS!

**Algebra**

Thanks. What does that symbol mean? and how do i write it?

**Algebra**

Perform the indicated operation and state the domain. Let f(x)=x-1 and g(x)=x+1 f(x) - g(x) Heres my work (x-1) - (x+1) x-x=0 and -1-1=-2 Answer =-2 because the x's cancel each other out. How do i find the domain when there is no x in the answer?

**physics**

hkgfffc

**algebra**

use the Substitution Method. Please give it a try. y = 3x + 4 5x + 3y = 12 Why is the substitution method preferred in this case?

**chemistry**

0.03125M

**Physics**

100.32

**physics**

what is the prarticle diagram for the thermite reaction?

**math**

how do you solve: -3y=3x-9 and 2x-4y=12 and -3x=2y

**math**

wow thanks rieny :)

**math**

rieny that doesent make sense it cant be.

**math**

im in grade 4 i don't know what that is

**math**

the floor of a room is a rectangle. it has a perimeter of 22m and an area of 24 square meters. what are the length and width of the room?

**physics**

Speedometer readings are obtained and graphed below as a car comes to a stop along a straight-line path. How far does the car move between t = 0 and t = 14 s?

**AM I RIGHT?**

Ok i have done some more reading, and i get the feeling it was bad. Because it isolated the people from the rest of the Eastern EMpire? But i have to write an entire essay on this topic? what else can i say?

**World History**

There's too much information, my brain cant process it all. But i get the feeling it was good??

**World History**

What influence did the Mongol's Golden Horde have on the development of the Russian Empire? (Good or Bad?)

**World History**

Yes it does have to do with the Byzantine Empire because that's what we are studying right now...

**World History**

Well if you look at its geographical location does it seem like a lot of people would come there? (this is why i posted this Q, it doesnt make sense)

**World History**

Why is there such a wide diversity of people in Eastern Europe? What are some of the origins of these diverse groups?

**math**

slope = (y2-y1)/(x2-x1)=(8-0)/(-2+2) =8/0= infinity

**Calculus BC**

Find the volume if the region enclosing y=2x, y=0, x=3 is rotated a)about the y-axis b)about the line x=3 c)about the line x=4.

**geometry**

given: chord AB is parallel to chord CD prove if two chords of a circle are parallel, the two arcs between the chords are congruent. Prove: arc AC is congruent to arc BD

**banyan elementary**

Samantha has 7 tomato plants in 12 rows. How many tomato plants does she have? Solve using multiplication equations

**math**

i'm sorry i left out one part. "A rectangle is 4 times as long as it is wide. A 2nd rectangle is 5 centimeters longer and 2 centimeters wider than the first. The area of the second rectangle is 530 square centimeters greater than the first. What are the dimensions of ...

**math**

A rectangle is 4 times as long as it is wide. A 2nd rectangle is 5centimeters longer and 2 centimeters wider than the first. what are the dimensions of the original rectangle?

**math**

i have no idea how to do this...

**reading**

What is the Antonym for the word RECIPE?

**dressmaking**

there are mistakes in those answers, I just did this test. here the correct answers 1. B (reference for study book 042014 PAGES 34, 35) 5. C (reference for study book 042014 PAGES 25-27)

**math**

rectangle A has length 12 cm and width 6 cm and while rectangle B has llength 8 cm and width 5 cm .find the ratio of the size of and angle of A to the size of an angle of B

**Physics**

How much time is needed for 5.0 N force to increase the speed of a 0.248 kg object from 12 m/s to 56 m/s?

**Physics**

How much force is needed to make a 1,400 kg car moving at 35 m/s come to a stop in 5.2s?

**Physics**

How much force is needed to make a 1,400 kg car moving at 35 m/s come to a stop in 5.2s?

**Physics**

How much time is needed to completely stop a 1600 kg car moving at 35 m/s if an average force of 4200 n is applied?

**Calc**

1. For what value(s) of x is f(x) = (x-1) / (x^2 - 1) discontinuous? 2.) f(x) = (1)/(x^2) is continuous for all real numbers EXCEPT: a. x=0 b. x=1 only c. x=1 and x=-1 d. x=-1 only e. x=2

**English**

What are some main points of rising action in the Scarlet Ibis?

**Math**

Find the equation that represents all of the points that are three times as far from (6,6) as they are from (2,0)

**interesting log problem**

sounds quite right to me. thanks!

**interesting log problem**

log base 2n 1944 = log base n (486* (2)^1/2) find n^6

**Math hw**

A corporation has 24 shareholders holding 4140 shares. The founder of the company retains 50 % of the companies shares. The remaining shares are equally divided among his 23 grandchildren. By the company's articles of incorporation, the voting weight for each partner is ...

**Math help**

A corporation has 30 shareholders holding 2900 shares. The founder of the company retains 50 % of the companies shares. The remaining shares are equally divided among his 29 grandchildren. By the company's articles of incorporation, the voting weight for each partner is ...

**Calculus**

is the region bounded by x=0? if no, then it is in fact infinite... if yes, then: 1) find the points of intersection. they are x = 1/2 and x = 0. 2) take the integral of pi*(4x^2)^2 from 0 to 1/2.

**7th grade**

i need help with social stuides describe islam in the 600's

**Interger Science**

Calculate the free-fall acceleration of a 20 kg bag of salt.

**physics**

A 3.5 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 19 N at an angle θ = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to the right.)

**english**

we're the one and only primo exemplary, boisterous in a fun groove and rapturous in our own fascinating way. check parallelism???? tnx

**Math**

Thank you!!!

**Math**

Is it how?

**Math**

A tropical water lily doubles in size each week. If it takes 60 weeks for the plant to completely cover a pond, when will half the pond be covered?

**8th grade math**

the lesser of two consecutive even intergers is 10 more than one-half greater. Find the intergers

**math**

five 150ml cans of perfrct prt dog food $1.26. twelve 400ml cans of doggies love it for $7.38. ten 150ml cans of rover's chow for $2.60. six 400ml can of man's best forend for $3.94. Which pet food should ms.jones buy? explain in as many differnt ways as possible??

**language arts**

The rules require that each contestant make his or her own kite. What is the simple subject word?

**arithmetic**

i have difficulties understand what this means... numerals seventeen tens and twelve ones can u help

**art**

Give two reasons why jackson pollack's style of painting is considered important?

**ryme**

what rhyes with candy

**practice book**

ok thank youso much

**practice book**

grt rid of the double negatives you sure its too hard a life?

**chemistry**

energy level

**accounting**

create a balance sheet for this company from May 1 to August 31.Deposit$1000,$600 loan,August 31-balance of checkbook=$690,$400 supplies,Owe employees$1900.00+$200more,$600 for 6 month lease in advance,$300 repair bill,$300 trailor for equipment,$460 withdraw for owner. Need ...

**chemistry AP**

You have to design a buffer based on one of the systems below System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4 System 3: HA3 and A3-1 K= 6 E-5 For the following parts assume that the buffer above in system2 has been constructed with [HA] =1M and that there is no...

**chemistry AP**

You have to design a buffer based on one of the systems below System 1: HA1 and A1-1 K= 4 E-3 System 2: HA2 and A2-1 K= 5 E-4 System 3: HA3 and A3-1 K= 6 E-5 For the following parts assume that the buffer above in system2 has been constructed with [HA] =1M and that there is no...

**chemistry AP**

methyl red has the following color changes red 4.2 -8.3 yellow a)write the ionic equilibrium equation b) If a small quantity of methyl red is placed in a solution with a pH of 4.5 . calculate the approximate value of [In]/[HIn]. What colour would be observed on the basis of ...

**ALGEBRA**

I NEED help on the following problem can some one help me please and thanks 5x-y+z= 8 2x+2y-3z= 28 x-3y+2z= -15

**MATH**

can some one please help to solve this problem. Add. reduce to lowest terms, if possible 3/y+3+y+7-y-9+/7/y-3

**math**

if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.

**math**

if 9th term of an A.P is 0.prove that its 29th term is double the 19th term.

**chemistry**

1. PV=nRT Par(1L)=(0.035mol)(0.0821)(25+273) =0.856 atm 2.Ptotal = Par + Pethane Pethane= 1.00atm-0.856atm = 0.144atm

**science**

Are there any questions on earth that haven't been answered or are to compicated for scientists to get to or understand?

**4th grade**

For solid the particles stay together you can compare that to best friends that stick together. For Liquid the particles move and start going everywhere, compare that to friends. For gas the particles move really fast and some go out because they are moving too fast why don&#...

**science**

Which class are you in???

**MGT Business**

What are the implications of "compare and contrast" techniques used in the workplace?

**5th grade**

what can you tell me about Amerigo Vespucci?

**Math**

The deck in hopes backyard is round. It has 5 posts evenly spaced around the edge to support a trellis. For her birthday party, she wants to connect each post to all the other posts with crepe-paper streamers. How many streamers will she need?

**visual**

What comment is Billy Wilder making with the reversal of sexual stereotypes in Some Like it Hot.?